Question

a tennis ball moves with a velocity of 30m/s horizontally to the
right. a tennis racket strickes the ball giving it a velocity of
30m/s to the left. treat the collision as elastic and the ball and
racket as particles of mass .05kgand .5kg respectively.

a) does the speed of the racket change as a result of
collision?
b)what is the value of the total momentum of the system?
c)find the initial velocity of the racket